/*
 * filename : isalnum.c
 * function : Is it a number or character.
 * author : xiaozhi
 * copyrigth (c)  xiaozhi 2006 wise 
 */

#include "isalnum.h"

int isalnum_(int c)
{
	if (c > 48 && c < 57) {
		return c;
	}
	else {
		return -1;
	}

	if (c >= 97 && c <= 122) {
		
	}
}